/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.metadata.tagSchemaRegion.tagIndex.memtable;

import java.util.HashMap;
import java.util.Map;

/**
 * used to manage tagValue -> MemChunk
 */
public class MemChunkGroup {

    // manage tagValue -> MemChunk
    private Map<String, MemChunk> memChunkMap;

    public MemChunkGroup() {
        memChunkMap = new HashMap<>();
    }

    public void put(String tagValue) {
        if (!memChunkMap.containsKey(tagValue)) {
            memChunkMap.put(tagValue, new MemChunk());
        }
    }

    @Override
    public String toString() {
        return memChunkMap.toString();
    }

    public MemChunk get(String tagValue) {
        return memChunkMap.get(tagValue);
    }

    public void remove(String tagValue) {
        memChunkMap.remove(tagValue);
    }

    public boolean isEmpty() {
        return memChunkMap.isEmpty();
    }
}
